Home / 11,012.40-16,516.80-3,219.36

Finding the Fourth Proportional to 11,012.40, 16,516.80 and 3,219.36

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Solution

The fourth proportional to 11,012.40, 16,516.80 and 3,219.36 is: 4,828.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012.40 : 16,516.80 = 3,219.36 : x
  2. Step 2: Convert to fraction form
    11,012.40/16,516.80 = 3,219.36/x
  3. Step 3: Cross multiply
    11,012.40x = 16,516.80 × 3,219.36
  4. Step 4: Simplify right side
    11,012.40x = 53,173,525.25
  5. Step 5: Solve for x
    x = 53,173,525.25/11,012.40
  6. Step 6: Final answer
    x = 4,828.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.